The concert you have been waiting for is CANCELLED!

I just saw that Frank Ocean had to cancel his tour because of a torn vocal chord. Ouch! I feel like I've read about a number of cancelled tours this summer, so I investigated and was startled to see how many acts, both large and small, have cancelled all or a portion of their 2013 tours. Some have specific medical reasons, while others offer only vague and un-verifiable excuses. It seems that if you regularly attend concerts, which I don't, you might find yourself disappointed at some point this summer. Here are the ones I came across.